Improvement in driven wells



A. WILSON.

Driven Wells. No.140,665. Patentedjuly8,1873.

AM. PHDTUi/THUGRAHHICCQ uk(assomvs'spmcess) V UNITED STATES PATENTQFFIOE.

ALPHONSO WILSON, OF PLAINFIELD, NEW JERSEY.

IMPROVEMENT IN DRIVEN WELLS.

Specification forming part of Letters Patent No. 140,665, dated July 8,1873; application filed May 5, 1873.

To all whom it may concern:

Be it known that I, ALPHONSO WILSON, of Plainfield, in the county ofUnion and State of New Jersey, have invented a new and usefulImprovement in Drive-Wells, of which the following is a specification:

Figure l is a side view of the water-section of adrive-well tubeillustrating my invention, part being broken away to show theconstruction. Fig. 2 is a cross-section of the same taken through theline as 00, Fig. 1.

Similar letters of reference indicate corresponding parts.

My invention has for its object to improve the construction ofdrive-well tubes so that the wire-gauze cannot be cut or torn off, whilethe tube is being driven, by stones or other 0bstructions. The inventionconsists in a watersection of a drive-Well tube cast of malleable ironwith a conical point, alternatecontracting and expanding ring-sections,and a tubular top section, and having its contracting sectionsperforated and covered with wiregauze, and a screw-thread out upon itstubular top section.

A represents the water-section, which is cast of malleable iron in onepiece. The point a is made conical, and the portion above the point aconsists of alternate contracting and expanding ring-sections a a". Inthe contractin g sections a are formed elongated openings a for thewater to pass through, and these contracting sections are covered withwire-gauze B to prevent sand from passing into the pipe with the water.The expanding sections a are left uncovered.

By this construction, when the tube is being driven the expandingsections a force back any stones or other obstructions, so that theywill not cut or tear the gauze B with which the contracting sections aare covered, the surface of the wire-gaze contracting from the main lineof the tube, so that the gauze will move away from the stones, &c.,while the tube is being driven.

The upper section a is made tubular, and

has a screw-thread out upon its upper part.

The section a" has longitudinal ribs an -three, four, or morecast uponits inner surface to strengthen it and prevent it from being crushedwhen cutting the screw-thread upon it, and more particularly tostrengthen it While drivlng.

Havingthus described myinvention, I claim as new and desire to secure byLetters Patent A water-section, A, of a drive-Well tube, cast ofmalleable iron with a conical point, a alternate contracting andexpanding ring-sections a a and a tubular top section, of, and havingits contracting sections a perforated and covered with wire-gauze B, anda screwthread out upon its tubular top section 66, substantially ashfi'rein shown and described.

ALPHONSO WILSON.

Witnesses:

FRANK B. CLARK, J OSEPH B. OOWARD.

